FEATURES:
-M9A3/ Vertec Night Sights Kit feature tritium gas-filled lamps w/ a sapphire front lens which focuses light & is impervious to solvents
-The sapphire lens-enhanced tritium vial, is one of the brightest in the industry
-The lamps glow bright green in the dark & have white outlines that show as white spots in the daylight
-Sight Kit must be installed by a professional gunsmith